Where can I find a pencil sharpener the right size to handle the Wet n Wild Idol Eyes Creme Shadow pencil?

I love Wet n Wild's Idol Eyes Creme Shadow as an eye primer before I put on my shadow. However, I have to keep buying new pencils when they get dull because the pencil is too fat to fit even the large side of my cosmetic pencil sharpener. Why would they sell a product that can't be sharpened???